Thank you for viewing! (^^) How about this for a spare bed for your pet, or a hideaway, as it easily gets dirty? ✽Size✽ 〈Vertical Type〉 Overall... Approximately 23cm (length) x 18cm (width) Bag part... Entrance approximately 26cm, depth approximately 16cm ✽Size✽ 〈Horizontal Type〉 Overall... Approximately 18cm (length) x 23cm (width) Bag part... Entrance approximately 30cm, depth approximately 15cm Rubber bands for securing a heater are attached to the back. Images 6 and 7 show an example of attaching the "Hot 2-Way Heater M". *Heater not included. Interfacing is used for the bag part fabric, and quilted padding is used for the bottom fabric. Please be careful if it tears or gets a hole. This is a handmade item, so there may be some slight imperfections and wrinkles. We appreciate your understanding before purchasing. m(_ _)m